package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.common.to.SkuReductionTo;
import com.atguigu.gulimall.common.to.SpuBoundTo;
import com.atguigu.gulimall.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.spu.*;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.gulimall.common.utils.PageUtils;
import com.atguigu.gulimall.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import javax.annotation.Resource;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Resource
    private SpuInfoDescService spuInfoDescService;
    @Resource
    private SpuImagesService spuImagesService;
    @Resource
    private AttrService attrService;
    @Resource
    private ProductAttrValueService productAttrValueService;
    @Resource
    private SkuInfoService skuInfoService;
    @Resource
    private SkuImagesService skuImagesService;
    @Resource
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Resource
    private CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * TODO 高级部分再来完善
     * @param spuSaveVo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo spuSaveVo) {
        //1.保存spu基本信息，pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(spuSaveVo, spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2.保存spu的描述，pms_spu_info_desc
        List<String> decript = spuSaveVo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",", decript));
        spuInfoDescService.saveSpuInfoDesc(spuInfoDescEntity);


        //3.保存spu的图片集，pms_spu_images
        List<String> images = spuSaveVo.getImages();
        spuImagesService.saveSpuImages(spuInfoEntity.getId(), images);

        //4.保存spu的基础属性（规格参数），pms_product_attr_value
        List<BaseAttrs> baseAttrs = spuSaveVo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            productAttrValueEntity.setAttrName(attrEntity.getAttrName());
            productAttrValueEntity.setAttrValue(attr.getAttrValues());
            productAttrValueEntity.setQuickShow(attr.getShowDesc());
            productAttrValueEntity.setSpuId(spuInfoEntity.getId());
            return productAttrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttrValue(collect);

        //5.保存spu的积分信息，远程调用 gulimall_sms -> sms_spu_bounds
        Bounds bounds = spuSaveVo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        //商品idz
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存积分信息失败");
        }

        //5.保存当前spu对应的所有sku信息；
        List<Skus> skus = spuSaveVo.getSkus();
        if (!CollectionUtils.isEmpty(skus)){
            skus.forEach( sku -> {
                //设置默认显示图片
                String defaultImg = "";
                for (Images image : sku.getImages()){
                    if (image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl();
                    }
                }
                //    private String skuName;
                //    private BigDecimal price;
                //    private String skuTitle;
                //    private String skuSubtitle;
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(sku, skuInfoEntity);
                //品牌id
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                //分类id
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //5.1)sku销售属性的基本信息，pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                //5.2)sku的图片信息，pms_sku_images
                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> skuImagesEntities = sku.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    //返回true就是需要，返回false会被过滤掉
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //TODO 没有图片路路径的不保存
                skuImagesService.saveBatch(skuImagesEntities);

                //5.3)sku的销售属性信息，pms_sku_sale_attr_value
                List<Attr> attr = sku.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntitys = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntitys);

                //5.4)sku的优惠满减信息，gulimall_sms -> sms_sku_ladder(打折) \ sms_sku_full_reduction(满减表) \ sms_member_price (会员价格表)
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(sku, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if(skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1){
                    R skuReductionR = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (skuReductionR.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }



    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> spuInfoEntityQueryWrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            spuInfoEntityQueryWrapper.and( (wrapper) -> {
                wrapper.eq("id", key).or().like("spu_name", key);
            });
        }
        // status = 1 and (id=1 or spu_name = xxx)
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            spuInfoEntityQueryWrapper.and( (wrapper) -> {
                wrapper.eq("publish_status", status);
            });
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)){
            spuInfoEntityQueryWrapper.and( (wrapper) -> {
                wrapper.eq("brand_id", brandId);
            });
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)){
            spuInfoEntityQueryWrapper.and( (wrapper) -> {
                wrapper.eq("catalog_id", catelogId);
            });
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                spuInfoEntityQueryWrapper
        );

        return new PageUtils(page);
    }


}